krogerssolar
Senior Member
Hi all I need some help with my code I basicly don't know where to start I have a Railroad code the is using an LDR I'm looking to do a IRIN Cunrtly the code has two LDR inputs i would like to swap to IRIN inputs basically if the beam is broken the code should be triggered.
this is what i have
I Already have a IRIN working with just leds but don't know what to do for the servo or how to incorporate it with IR
Working LED IR code
Anyone have an Idea.
Thanks
this is what i have
Code:
start0:
#PICAXE 14M2
;Define Outputs use portB pins
SYMBOL Light1 = b.1
SYMBOL Light2 = b.2
SYMBOL Light3 = b.3
SYMBOL Gong = b.4
SYMBOL boom1 = b.5
;Define inputs use portC pins
SYMBOL LDR_1 = c.0
SYMBOL LDR_2 = c.4
'Define variables
SYMBOL boompositn = b1
SYMBOL currentpos = b2
SYMBOL Flasherflag = b3
SYMBOL Lightlevel1 = b5 ; select a spare variable b5 here
SYMBOL LightLevel2 = b6
;define constants
SYMBOL BoomSpDelay = 60 'ms
SYMBOL FlashDelay = 500 'ms
SYMBOL Setpoint1 = 60 ; 0 to 255 is ADC input range - this is the trigger level for lights to flash
SYMBOL Setpoint2 = 60 ; 0 to 255 is ADC input range - this is the trigger level for lights to flash
SYMBOL BoomIsUp = 120
SYMBOL BoomIsDown = 218
; first code section is for boom control
init:
servo boom1,120 ; initialise servo
currentpos = BoomIsUp
BoomCtrl:
READADC LDR_1, LightLevel1 ; check light level at side 1
READADC LDR_2, LightLevel2 ; check light level at side 2
IF currentpos = BoomIsUp THEN
IF LightLevel1 > Setpoint1 OR LightLevel2 > Setpoint2 THEN ; if train is detected at either sensor
PAUSE FlashDelay ; wait a while (say 2 flash periods) so lights flash before the boom starts to lower
PAUSE FlashDelay
FOR boompositn = BoomIsUp TO BoomIsDown ; lower the boom in increments
SERVOPOS boom1, boompositn ; move to next incremental position
PAUSE BoomSpDelay ; delay to give slower boom travel speed
NEXT boompositn
currentpos = BoomIsDown ; set the current boom position as down
ENDIF
ENDIF
IF currentpos = BoomIsDown THEN
IF LightLevel1 < Setpoint1 AND LightLevel2 < Setpoint2 THEN ; if train is clear of both sensors
FOR boompositn = BoomIsDown to BoomIsUp STEP - 1 ; raise the boom in increments
SERVOPOS boom1, boompositn
PAUSE BoomSpDelay
NEXT boompositn
currentpos = BoomIsUp ; set the current boom position as up
ENDIF
ENDIF
GOTO BoomCtrl
;==========================================================
; run the flashing lights as a separate process
Start1:
LOW Light1 ; turn off all lights and bell/gong
LOW Light2
low Light3
LOW Gong
LightCtrl:
IF LightLevel1 > Setpoint1 OR LightLevel2 > Setpoint2 THEN ; start flashing the lights as boom about to be lowered
DO
IF Flasherflag = 0 THEN ; set for first time only in each boom down - up cycle
HIGH Light1
LOW Light2
HIGH Light3
Flasherflag = 4 ; any non zero value - to flag not to repeat
ENDIF
PAUSE FlashDelay
HIGH Gong
TOGGLE Light1 ; flash each light alternately
TOGGLE Light2
PAUSE FlashDelay
LOW Gong
LOOP UNTIL LightLevel1 < Setpoint1 AND LightLevel2 < Setpoint2 AND currentpos = BoomIsUp
ENDIF
IF Flasherflag = 4 THEN ; when the boom is fully raised
FOR Flasherflag = 4 to 1 step -1 ; flash lights for a few more cycles after the boom is down
PAUSE FlashDelay ; don't change the sequence 3 to 1 or will need to add b3 = 0 after the NEXT command
HIGH Gong
TOGGLE Light1 ; flash each light alternately
TOGGLE Light2
PAUSE FlashDelay
LOW Gong
NEXT Flasherflag ; on exit b3 = 0 ready for the next cycle
LOW Light1 ; turn off all lights
LOW Light2
LOW Light3
ENDIF
GOTO LightCtrlWorking LED IR code
Code:
#PICAXE 08M
main:
symbol Light1 = c.1
symbol Light2 = c.2
SYMBOL IRIN1 = pinc.3 ; The IR input to detect train presence
SYMBOL IRIN2 = pinc.4 ; The IR input to detect train presence
symbol Delay = 900 'ms
DO
IF IRIN1 =1 or IRIN2 =1 THEN ; IR beam is broken
low Light1
pause Delay
high Light1
low Light2
pause Delay
high Light2 ; Red Lights Flashing
ELSE ; IR beam is received
ENDIF
LOOPThanks
